DOC: generate docs for the Series.dt.isocalendar() method. (#46674)

Author: tswast

doc/source/reference/series.rst

@@ -342,6 +342,7 @@ Datetime methods
    :toctree: api/
    :template: autosummary/accessor_method.rst
 
+   Series.dt.isocalendar
    Series.dt.to_period
    Series.dt.to_pydatetime
    Series.dt.tz_localize

pandas/core/indexes/accessors.py

@@ -277,12 +277,13 @@ def isocalendar(self):
     @property
     def weekofyear(self):
         """
-        The week ordinal of the year.
+        The week ordinal of the year according to the ISO 8601 standard.
 
         .. deprecated:: 1.1.0
 
-        Series.dt.weekofyear and Series.dt.week have been deprecated.
-        Please use Series.dt.isocalendar().week instead.
+        Series.dt.weekofyear and Series.dt.week have been deprecated.  Please
+        call :func:`Series.dt.isocalendar` and access the ``week`` column
+        instead.
         """
         warnings.warn(
             "Series.dt.weekofyear and Series.dt.week have been deprecated. "